/* ───────────────────────────────
   Product / Case Study Pages
   ─────────────────────────────── */

.product-hero {
  padding: 140px 0 80px;
  text-align: center;
  background: var(--color-bg-alt);
}

.product-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.product-hero h1 {
  font-size: clamp(36px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.product-subtitle {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 640px;
  margin: 0 auto;
}

.product-body {
  padding: 80px 0 100px;
}

.product-section {
  margin-bottom: 56px;
  max-width: 680px;
}

.product-section:last-of-type {
  margin-bottom: 0;
}

.product-section h2 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.product-section p {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.product-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.nav-links .active {
  color: var(--color-text) !important;
  font-weight: 500;
}

@media (max-width: 768px) {
  .product-hero {
    padding: 110px 0 60px;
  }

  .product-body {
    padding: 56px 0 72px;
  }

  .product-section {
    margin-bottom: 40px;
  }

  .product-section h2 {
    font-size: 24px;
  }

  .product-nav {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
}